A kind of important and nonmetal resources——the exploitation and the usage of fluorite ore

Fluorite,one of halogen minerals,CaF₂,consists of 51.1%Ca and 48.9%F.With different types of minerals,fluorite is composed of Quartz-Fluorite type,Calcite-Fluorite type,Carbonate-Fluorite type,Sulfide-Fluorite type,Barite-Fluorite type and Quartzolite-Fluorite type.A halogen element,F,is major raw materials deriving fluorine compound,and because of low melting point,that is widely used in steelmaking,nonferrous metal smelting,cement,glass and ceramics.The fluorite mineral resource of our country has obvious characters as follows:(1)The reserve of fluorite is considered the first in the world and the potential stock is very big.(2) The fluorite reserve is relatived concentrated.(3) The number of unitary type fluorite mineral deposits (occurences)is many.The reserves of those is little;Associated(paragenetic) mineral deposits (occurences) are few.The reserve is big.(4) Poor ores are many.Rich ores are few.(5) The difficult dressing ores are many.The easy dressing ores are few.